Internal-combustion engine.



tion occupied by the piston head when the piston is at the limit of its out stroke, and

the cylinder also having a diaphragm 1n its gas, the pocket being arranged on the opcompression chamber extending part way across such chamber, the diaphragm projecting from the opposite side of the/cylinder from that on which the inlet port is located, and a spark plug having its electrodes exposed within the main part of the chamber oi', the cylinder above .the diaphragm near a line extending parallel to the direction of movement of thev piston and between the edge of the diaphragm and the opposite wall of the cylinder, substantiallyI as and for the purpose described.

2. In a two cycle internal combustion enine a c'linder and a iston movable-in g i .l i

the cylinder, the cylinder having inlet and exhaust ports located in front of the position occupied` hy the piston head when the piston is at the limit of its out stroke, and

the cylinder also having a diaphragm in its compression chamber extending part way across Such chamber ,forming a pocket for the posite side of the cylinder to that on which the inlet port is located, the Wall of the com-K pression chamber being curved to deiect the incoming charge into said pocket, and a,-

spark plug supportedby the cylinder and .30

having its electrodes located near such pockets above the diaphragm, substantially as and for the purpose described.

In testimony whereof, I have hereunto signed my name in the presence of two at- '35 testing Witnesses, at Syracuse, ,in the county of Onondaga, in the State of New York,`

this 23rd day of Sept., 1910.

. -AURIN M. CHASE.

Witnesses:

S DAVIS, Y F. G. Boom. 

